RHSA-2026:43513: Moderate: openssl security update
Moderate: openssl security update
Other sources
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.Security Fix(es): openssl: OpenSSL: Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing (CVE-2026-28390) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/opensslto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-debuginfoto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-debugsourceto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-develto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-libsto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-libs-debuginfoto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
redhat/openssl-perlto a version that resolves this vulnerability.Fixed in 1.1.1g-18.el8_4.3 - Upgrade
Upgrade
opensslto a version that resolves this vulnerability.Patch CVE-2026-28390
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:43513?
The severity of RHSA-2026:43513 is classified as medium with a rating of 4.
What does RHSA-2026:43513 address?
RHSA-2026:43513 addresses a denial of service vulnerability due to a NULL pointer dereference in OpenSSL.
How do I fix RHSA-2026:43513?
To fix RHSA-2026:43513, update the affected OpenSSL packages to the latest version provided by Red Hat.
Which software packages are affected by RHSA-2026:43513?
The affected software packages include redhat/openssl, redhat/openssl-debuginfo, redhat/openssl-devel, and redhat/openssl-libs.
What is the risk associated with RHSA-2026:43513?
The risk associated with RHSA-2026:43513 is given a risk score of 19.